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ASRock

ASRock B550M-ITX/AC Supports 3rd Gen AMD AM4 Ryzen™ / Future AMD Ryzen™ Processors motherboard Mini ITX

  • Based on 779 reviews
Condition: New
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Availability: 18 left in stock
Fulfilled by MemoryC
Arrives Sunday, Feb 22
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Style: Motherboard


Features

  • Supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors but not compatible with AMD Athlon Processors
  • Supports DDR4 4733+ (OC)
  • Graphics Output: DisplayPort, HDMI
  • 7.1 CH HD Audio (Realtek ALC887 Audio Codec)

Description

Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well. Operating System Microsoft Windows 10 64-bit.

Brand: ASRock


CPU Socket: Socket AM4


Compatible Devices: Personal Computer


RAM Memory Technology: DDR4


Compatible Processors: AMD Ryzen 5000/4000/3000 Series


Chipset Type: AMD B550


Memory Clock Speed: 2400 MHz


Platform: Windows 10, Windows 11


Model Name: B550M-ITX/AC


CPU Model: 5X86


Standing screen display size: ‎75


Processor: ‎5x86


RAM: ‎DDR4


Memory Speed: ‎2400 MHz


Wireless Type: ‎Bluetooth


Number of USB 2.0 Ports: ‎1


Brand: ‎ASRock


Series: ‎B550M-ITX/AC


Item model number: ‎B550M-ITX/AC


Item Weight: ‎1.83 pounds


Product Dimensions: ‎11 x 8.5 x 2.5 inches


Item Dimensions LxWxH: ‎11 x 8.5 x 2.5 inches


Computer Memory Type: ‎DDR4 SDRAM


Flash Memory Size: ‎8 GB


Batteries: ‎1 CR2032 batteries required.


Manufacturer: ‎ASRock


Language: ‎English


Is Discontinued By Manufacturer: ‎No


Date First Available: ‎June 16, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Feb 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • great affordable small form factor motherboard
Style: Motherboard
Review Image by Johnny Rage Johnny Rage
*B550 works with PBO on x3d processors *ARGB connectors *wifi *cheap *ASRock has really earned my respect lately great build quality, I build a SFF in the Fractal Ridge with a 5700X3d, 32gb ddr4, RX6750XT. Overall motherboard handled it all very well. did exactly what I needed it to do. It did require a bios update to get PBO on the X3d but that is normal, it was released after the product was made. ... show more
Reviewed in the United States on July 22, 2024 by Johnny Rage Johnny Rage
    • Hasn't let me down great for modest gaming.
Style: Motherboard
Before you start building I'd recommend swapping out wifi card with a ax211 or better. I put a ryzen 5 3600 in it, dual ddr4 16gb 3200mhz ram kit in it (32gb total). 500w psu, and a old 3060ti I had laying around in SFF case with handle. CPU and motherboard temp are close in temperature. So if gaming and CPU is around 63c motherboard would be displaying a temp of something like 58c. I'm only mentioning this cause people are saying the thermal plate for motherboard is too small. If you put something crazy on this board like a 4080 with a 5950x 16 core CPU, and 4000+mhz ddr4 ram. I can't say for sure, but I have no doubt that plate would be a problem. Keep in mind this is a budget board, and you shouldn't expect miracles. That being said me and my stepson played WWE 2k24 for hooooouuurrss multiple times on it so far. No issue at all. First time buying a ASRock board as well and the bios and ASRock apps seem kinda crude and dated compared to MSI or ROG, but definitely has everything you need to modify bios, fan speed, rgb etc. I kinda like it. I'm real happy with purchase. ... show more
Reviewed in the United States on March 12, 2024 by Ortron
    • Great AM4 B550 Mobo
Style: Motherboard
Great cheap mini itx for for am4. Only problem with this is am4 is getting old but that's nothing to do with the product itself. Its easy to build on its small with a basic layout. Can fit inside of most mini itx cases you want and my bios came preupdated.
Reviewed in the United States on January 10, 2026 by nick J.
    • using with 5700x3d and 5070 ti
Style: Motherboard
no issues with the hardware i'm running. cpu power is in a weird spot. good price for an itx board, tho it is very old at this point. nice to see that they're still in stock.
Reviewed in the United States on December 27, 2025 by M
    • Trash Bluetooth.
Style: Motherboard
Trash Bluetooth. I can't even get into the BIOS at least 50% of the time unless BT is disabled on the board. Tried multiple revisions.
Reviewed in the United States on November 21, 2025 by Max
    • A great product with a great price!
Style: Motherboard
It's solid, convenient, and easy to use. The included instruction sheet could be a little more clear but it's usable. I quite like Asrock boards. They always do a great job for me.
Reviewed in the United States on January 14, 2026 by Dave E.
    • Perfect choice when you're upgrading DDR4 SFF build in 2025
Style: Motherboard
Purchased this M/B as this is the last available upgrade choice which can utilize my DDR4 RAMs. (As of 2025 October) Works perfectly well with 5700X3D processor - PBO & Curve Optimizer supported. BIOS version was v3.40 Only quick guide was included in the box, but builders interested in ITX board/SFF PCs will not really need more than this. ... show more
Reviewed in the United States on October 29, 2025 by Cleanguy
    • Paid for New, Got an Open Box
Style: Motherboard
Not sure how to rate this, because part of the rating is for the motherboard, and part is for Amazon. I gave 1 star to Amazon and 4 stars to the motherboard. That's an average score of 2.5, which I rounded up to 3. The Amazon Part I got an obviously open-box item instead of the new one I paid for. I won't buy any more computer components from Amazon because of that. That's no way to treat customers. Pros None that I can see. Cons Bad Amazon! No, no, no! The Motherboard Part Booted on the first try, and it seems to be functioning well. I had one blue screen crash, but I had several odd web applications open, and I think that one of them (or the combination thereof) caused the error. Other than that, I've had no problems. I've had good luck with ASRock motherboards (so far), and I tend to stick with a brand that works for me. Pros It's a good board for a small computer case. Hardware Monitor reports what looks like correct temperatures, which wasn't happening with the motherboard I replaced. Cons None that I can see. ... show more
Reviewed in the United States on December 12, 2023 by J Bennett

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